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Old Posted Sep 26, 2016, 4:25 PM
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10023 10023 is offline
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Quote:
Originally Posted by Swicago Swi Sox View Post
It's not that simple...taller buildings require more of their floor plan to be eaten up by lateral system and elevators and mechanicals....reducing the usable/sellable/rentable floor plan. There are also very expensive foundation concerns when you get very very tall.

There is a reason why the 40 to 60 story apartment building is so ubiquitous in Chicago. It is the sweet spot for a cheap/less complicated lateral system, and caisson foundations that are pretty standard and easy in Chicago's relatively shallow clay layer, while still cramming in lots and lots of area.
Question for you: is this the main determinant of Chicago's prevailing building heights (particularly for office towers) in comparison to NY's?

I had always assumed it was about economics rather than engineering, but I'm curious.
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